Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1978-10-04
1979-12-25
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 27, 277157, 277193, F16J 908, F16J 1524
Patent
active
041802730
ABSTRACT:
A sealing device for rotor shaft of fluid machine. The sealing device has a solid annular packing extending circumferentially around the rotor shaft and including a plurality of circumferentially spaced segments. Each segment has a radially inner surface which functions as the sliding surface which is in sliding contact with the surface of the rotor shaft. The sliding surface is inclined from its edge adjacent to the low pressure side of the fluid machine radially outwardly, so that the sliding surface makes the initial sliding contact with the rotor shaft surface only at its edge adjacent to the low pressure side.
REFERENCES:
patent: 1309075 (1919-07-01), Morris
patent: 1327801 (1920-01-01), Blache
patent: 1426694 (1922-08-01), Weidenfeller
patent: 3305241 (1967-02-01), Hart
patent: 3844572 (1974-10-01), Parker
patent: 3893675 (1975-07-01), Geffroy
patent: 4005953 (1977-02-01), Ruf
Maegawa Muneo
Nii Katsutoshi
Takagi Nobuho
Beall, Jr. Thomas E.
Hitachi , Ltd.
Ward, Jr. Robert S.
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